BUG: fix travis ref

Travis is currently pointing to the wrong sample data commit (tag),
which results in numerous doctest and extest failures.
removed workaround to multiple coordinates been present when plotting.
BLD: change cf standard name table

Current table contains a bug, this commit switches to an ealier
table before this bug was introduced.
Merge pull request #586 from cpelley/fix_sampledata_ref

fix travis ref to new sample data
name traj load
Merge pull request #588 from dannymet97/tec_cleanup

Removed workaround to multiple coordinates being present when plotting.
Merge pull request #579 from bblay/trajload

name trajectory loading
Extend 1D plotting capabilities. Resolves #581.